mpitune

Tunes the Intel® MPI Library parameters for the given MPI application.

Syntax

mpitune <options>

Arguments

<options>

List of options.

-c | --config <file>

Specify a configuration file.

-h | --help

Display the help message.

-v | --version

Display the product version.

Description

The mpitune utility allows you to automatically adjust Intel MPI Library parameters, such as collective operation algorithms, to your cluster configuration or application.

The tuner iteratively launches a benchmarking application with different configurations to measure performance and stores the results of each launch. Based on these results, the tuner generates optimal values for the parameters that are being tuned.

All tuner parameters should be specified in a configuration file, which is passed to the tuner with the --config option. A typical configuration file consists of the main section, specifying generic options, and search space sections for specific library parameters (for example, for specific collective operations). To comment a line, use the hash symbol #. A configuration file example is available at <installdir>/etc/tune_cfg/example.

For available configuration options, refer to mpitune Configuration Options.

For more complete information about compiler optimizations, see our Optimization Notice.
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